Donald Trump Jr. couldn't remember who was at the other end of a mystery 4-minute phone call - Mueller might have the answer

Jonathan Ernst/Reuters
People are zeroing in on a four-minute mystery call between Donald Trump Jr. and a blocked number.
That discussion took place just days before a controversial June 2016 Trump Tower meeting between top Trump campaign officials and Russians.
Special counsel Robert Mueller could uncover the identity of that caller, one expert said.
Trump Jr. said he did not recall who the call was with, according to closed-door transcripts released Wednesday by the Senate Judiciary Committee.
There is a four-minute mystery phone call - which took place just prior to the June 2016 Trump Tower meeting between Trump campaign officials and Russians - that Donald Trump Jr. claimed he couldn't remember much of anything about.
Special counsel Robert Mueller, however, could have an easy time finding that information, one expert said in highlighting the mystery call. See the rest of the story at Business Insider NOW WATCH: Here's how Donald Trump has changed since the '80s See Also: Donald Trump Jr. explains his...